CN204891594U - Flue gas desulfurizing apparatus - Google Patents
Flue gas desulfurizing apparatus Download PDFInfo
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- CN204891594U CN204891594U CN201520601875.7U CN201520601875U CN204891594U CN 204891594 U CN204891594 U CN 204891594U CN 201520601875 U CN201520601875 U CN 201520601875U CN 204891594 U CN204891594 U CN 204891594U
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- flue gas
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- desulfurizing tower
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Abstract
The utility model provides a flue gas desulfurizing apparatus, including the desulfurizing tower, oxidation tower and filter dehydration ware, the internally mounted of desulfurizing tower has the coil pipe that sprays that a plurality of arranged from top to bottom, the flue gas entry and the exhanst gas outlet of desulfurizing tower all utilize flue gas pipeline to be connected to same heat exchanger, the oxidation tower is located the lower extreme of desulfurizing tower and communicates with the desulfurizing tower is inside, the compressed air entry has been seted up to the lateral wall of oxidation tower, the thick liquids entry has still been seted up to the lateral wall of oxidation tower, and utilize thick liquids entry linkage thick liquids groove, thick liquids circulation mouth has been seted up to the lower part of oxidation tower, thick liquids circulation mouth utilizes thick liquids circulating line intercommunication to spray the coil pipe, be provided with first circulating pump on the thick liquids circulating line, the thick liquids outlet pipe has been seted up to the bottom of oxidation tower to utilize the thick liquids outlet pipe to be connected to the filter dehydration ware, a filtrate receiver is connected to the filtrate (liquid of filter dehydration ware, and the filtrate receiver utilizes pipe connection to thick liquids groove. The utility model provides the high utilization ratio of thick liquids has improved flue gas desulfurization's quality and efficiency simultaneously.
Description
Technical field
The utility model relates to technical field of environment protection equipment, particularly relate to a kind of be used for removing in flue gas sulfur dioxide and reach the device of clean emission.
Background technology
The coal-fired pollution problem of sulfur dioxide to environment produced more and more is valued by the people, in coal-fired process, desulfurization is the most effective way reducing now sulfur dioxide pollution, most widely used desulfur technology adopts lime stone exactly in the world now---gypsum wet flue gas desulfurizing, and for removing the sulfur dioxide in boiler smoke.Lime stone---gypsum wet flue gas desulfurizing needs to use lime stone slurry as absorbent to absorb the sulfur dioxide in flue gas.
Therefore, in the method for gypsum wet flue gas desulfurizing, the consumption of lime stone slurry is very large, and in actual production, lime stone slurry does not fully use and just drained greatly, which greatly enhances the cost of flue gas desulfurization, is unfavorable for energy-conserving and environment-protective; In addition, in actual production, the flue gas of high temperature is generally directly carried out desulphurization reaction by people, causes poor effect; And desulfurization complete after flue gas directly discharge when temperature is lower, also easily residual liquid, to sum up factor, also makes existing gypsum wet flue gas desulfurizing device effect poor.
Therefore, develop a kind of new flue gas desulfur device, not only have urgent researching value, also have good economic benefit and commercial Application potentiality, this is the power place that is accomplished of the utility model and basis just.
Utility model content
In order to overcome the defect of above-mentioned pointed prior art, inventor, to this has been further investigation, after having paid a large amount of creative work, thus completes the utility model.
Specifically, technical problem to be solved in the utility model is: provide a kind of flue gas desulfur device, to solve the technical problem that the waste of current limestone slurry is serious, desulfurized effect is poor.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of flue gas desulfur device, comprise desulfurizing tower, oxidizing tower and filtering means dehydration device, the inside of described desulfurizing tower is provided with several spray coils of arranging up and down, the lower sides of described desulfurizing tower offers smoke inlet, and the junction of described smoke inlet and described desulfurizing tower is lower than the minimum described spray coil in position, the upper end of described desulfurizing tower offers exhanst gas outlet, described smoke inlet and described exhanst gas outlet all utilize flue to be connected to same heat exchanger, in described heat exchanger, the flue gas being entered smoke inlet by heat exchanger can be lowered the temperature, the flue gas of being discharged by exhanst gas outlet then can be heated up in heat exchanger, described oxidizing tower is positioned at the lower end of described desulfurizing tower and is communicated with described desulfurizing tower inside, the sidewall of described oxidizing tower offers compressed air inlet, and utilize described compressed air inlet to connect air compressor, the sidewall of described oxidizing tower also offers slurry inlet, and utilize described slurry inlet to connect slurry tank, the bottom of described oxidizing tower offers size circulations mouth, described size circulations mouth utilizes spray coil described in size circulations pipeline communication, described size circulations pipeline is provided with the first circulating pump, the bottom of described oxidizing tower offers slurry outlet pipe, and utilize described slurry outlet pipe to be connected to described filtering means dehydration device, the filtrate (liquid of described filtering means dehydration device connects a filtrate receiver, and described filtrate receiver utilizes pipeline to be connected to described slurry tank, and described pipeline is provided with the second circulating pump.
As a kind of technical scheme of optimization, the upper portion side wall of described desulfurizing tower offers rinse water entrance, and described rinse water entrance is connected with water tank.
As a kind of technical scheme of optimization, described spray coil is provided with three layers.
As a kind of technical scheme of optimization, the below of described filtering means dehydration device is provided with the conveyer belt accepting filtrate, and the below of described conveyer belt is provided with water collector, and described water collector is connected to described filtrate receiver.
As a kind of technical scheme of further optimization, the top of described conveyer belt is provided with rinse water shower nozzle, and described rinse water nozzle connecting is connected to described water tank.
As a kind of technical scheme of optimization, the outlet conduit of described second circulating pump separates a manifold, and utilizes described manifold to connect a filter, and the filtrate (liquid of described filter is connected to described filtrate receiver.
Operation principle of the present utility model is as follows:
From the high-temperature flue gas that chimney comes, first heat exchanger is entered, carry out being reduced to suitable temperature in heat exchanger, then enter the bottom of desulfurizing tower, flue gas can rise, and slurry declines from top with Sprayable in desulfurizing tower, thus forming inverse contact with flue gas, the sulfur dioxide in flue gas is absorbed by slurry, and the flue gas after desulfurization can enter heat exchanger and be warming up to about 140 DEG C, enter again in air
And the slurry after cyclic absorption sulfur dioxide, then can fall in oxidizing tower, passing under compressed-air actuated condition, realizing oxidation, be then expelled to filtering means dehydration device by slurry outlet pipe, thickening through filtering means dehydration device is dewatered, obtain gypsum, and utilize conveyer belt to transport in gypsum, and cleaning fluid and filtrate are wherein containing unreacted paste composition completely, then can deliver in filtrate receiver, and be recycled to the use of slurry tank Inner eycle.
After have employed technique scheme, the beneficial effects of the utility model are:
Smoke inlet of the present utility model and exhanst gas outlet all utilize flue to be connected to same heat exchanger, in described heat exchanger, the flue gas being entered smoke inlet by heat exchanger can carry out being reduced to suitable temperature, the quality of follow-up sulfur dioxide and slurry reaction can be improved, ensure that the absorption efficiency of sulfur dioxide; The flue gas of being discharged by exhanst gas outlet then can be elevated to rational temperature in heat exchanger, and residual liquid is reduced; And heat exchanger can utilize the heat exchange between high-temperature flue gas and low-temperature flue gas to lower the temperature each other, heat up, and has saved energy consumption, more energy-conserving and environment-protective.
The bottom of described oxidizing tower of the present utility model offers slurry outlet pipe, and utilize described slurry outlet pipe to be connected to described filtering means dehydration device, the filtrate (liquid of described filtering means dehydration device connects a filtrate receiver, described filtrate receiver utilizes pipeline to be connected to described slurry tank, and described pipeline is provided with the second circulating pump.Based on this structure, by the paste composition recovery completely of unreacted in filtrate, the absorption participating in sulfur dioxide can be continued, substantially increases the utilization rate of slurry.
In sum, the utility model improves the utilization rate of slurry, improves quality and the efficiency of flue gas desulfurization simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein, in FIG, each number designation refers to following concrete meaning, element and/or parts respectively.
In figure: 1, desulfurizing tower, 2, oxidizing tower, 3, filtering means dehydration device, 4, spray coil, 5, smoke inlet, 6, exhanst gas outlet, 7, heat exchanger, 8, compressed air inlet, 9, air compressor, 10, slurry inlet, 11, slurry tank, 12, size circulations mouth, 13, the first circulating pump, 14, slurry outlet pipe, 15, mashing pump, 16, filtrate receiver, 17, the second circulating pump, 18, rinse water entrance, 19, water tank, 20, filter, 21, conveyer belt, 22, water collector, 23, rinse water shower nozzle.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is further illustrated.But the purposes of these exemplary embodiments and object are only used for exemplifying the utility model, not any type of any restriction is formed to real protection scope of the present utility model, more non-protection domain of the present utility model is confined to this.
As shown in Figure 1, a kind of flue gas desulfur device, comprise desulfurizing tower 1, oxidizing tower 2 and filtering means dehydration device 3, the inside of described desulfurizing tower 1 is provided with several spray coils 4 of arranging up and down, the lower sides of described desulfurizing tower 1 offers smoke inlet 5, and the junction of described smoke inlet 5 and described desulfurizing tower 1 is lower than the described spray coil 4 of extreme lower position, the upper end of described desulfurizing tower 1 offers exhanst gas outlet 6, described smoke inlet 5 and described exhanst gas outlet 6 all utilize flue to be connected to same heat exchanger 7, in described heat exchanger 7, the flue gas being entered smoke inlet 5 by heat exchanger 7 can be lowered the temperature, the flue gas of being discharged by exhanst gas outlet 6 then can be heated up in the heat exchanger 7, described oxidizing tower 2 is positioned at the lower end of described desulfurizing tower 1 and is communicated with described desulfurizing tower 1 inside, the sidewall of described oxidizing tower 2 offers compressed air inlet 8, and utilize described compressed air inlet 8 to connect air compressor 9, the sidewall of described oxidizing tower 2 also offers slurry inlet 10, and utilize described slurry inlet 10 to connect slurry tank 11, the bottom of described oxidizing tower 2 offers size circulations mouth 12, described size circulations mouth 12 utilizes spray coil 4 described in size circulations pipeline communication, described size circulations pipeline is provided with the first circulating pump 13, the bottom of described oxidizing tower 2 offers slurry outlet pipe 14, and utilize described slurry outlet pipe 14 to have mashing pump 15, and be connected to described filtering means dehydration device 3, the filtrate (liquid of described filtering means dehydration device 3 connects a filtrate receiver 16, described filtrate receiver 16 utilizes pipeline to be connected to described slurry tank 11, and described pipeline is provided with the second circulating pump 17, a manifold is separated at the outlet conduit of described second circulating pump 17, and utilize described manifold to connect a filter 20, the filtrate (liquid of described filter 20 is connected to described filtrate receiver 16, liquid in filtrate receiver 16 can be carried out circulating filtration by filter 20.
In the present embodiment, the upper portion side wall of described desulfurizing tower 1 offers rinse water entrance 18, described rinse water entrance 18 is connected with water tank 19, utilize described rinse water entrance 18 to described desulfurizing tower 1 jet cleaning water, not only can play the effect of supplementing water, also can the demister in desulfurizing tower 1 be cleaned.
In the present embodiment, described spray coil 4 is provided with three layers.Utilize three layers of spray coil 4 to spray slurry and can carry out high efficiency absorption to the sulfur dioxide in flue gas.
In the present embodiment, the below of described filtering means dehydration device 3 is provided with the conveyer belt 21 accepting filtrate, and the below of described conveyer belt 21 is provided with water collector 22, and described water collector 22 is connected to described filtrate receiver 16.
In the present embodiment, the top of described conveyer belt 21 is provided with rinse water shower nozzle 23, and described rinse water shower nozzle 23 is connected to described water tank 19.
Operation principle of the present utility model is as follows:
From the high-temperature flue gas that chimney comes, first heat exchanger 7 is entered, carry out being reduced to suitable temperature in heat exchanger 7, then enter the bottom of desulfurizing tower 1, flue gas can rise, and slurry declines from top with Sprayable in desulfurizing tower 1, thus forming inverse contact with flue gas, the sulfur dioxide in flue gas is absorbed by slurry, and the flue gas after desulfurization can enter heat exchanger 7 and be warming up to about 140 DEG C, enter again in air
And the slurry after cyclic absorption sulfur dioxide, then can fall in oxidizing tower 2, passing under compressed-air actuated condition, realizing oxidation, be then expelled to filtering means dehydration device 3 by slurry outlet pipe, thickening through filtering means dehydration device 3 is dewatered, obtain gypsum, and utilized by gypsum conveyer belt 21 to transport, and cleaning fluid and filtrate are wherein containing unreacted paste composition completely, then can deliver in filtrate receiver 16, and be recycled to the use of slurry tank 11 Inner eycle.
Should be appreciated that the purposes of these embodiments is only not intended to for illustration of the utility model limit protection domain of the present utility model.In addition; also should understand; after having read technology contents of the present utility model, those skilled in the art can make various change, amendment and/or modification to the utility model, and these all equivalent form of values fall within the protection domain that the application's appended claims limits equally.
Claims (6)
1. a flue gas desulfur device, comprise desulfurizing tower, oxidizing tower and filtering means dehydration device, it is characterized in that: the inside of described desulfurizing tower is provided with several spray coils of arranging up and down, the lower sides of described desulfurizing tower offers smoke inlet, and the junction of described smoke inlet and described desulfurizing tower is lower than the minimum described spray coil in position, the upper end of described desulfurizing tower offers exhanst gas outlet, described smoke inlet and described exhanst gas outlet all utilize flue to be connected to same heat exchanger, described oxidizing tower is positioned at the lower end of described desulfurizing tower and is communicated with described desulfurizing tower inside, the sidewall of described oxidizing tower offers compressed air inlet, and utilize described compressed air inlet to connect air compressor, the sidewall of described oxidizing tower also offers slurry inlet, and utilize described slurry inlet to connect slurry tank, the bottom of described oxidizing tower offers size circulations mouth, described size circulations mouth utilizes spray coil described in size circulations pipeline communication, described size circulations pipeline is provided with the first circulating pump, the bottom of described oxidizing tower offers slurry outlet pipe, and utilize described slurry outlet pipe to be connected to described filtering means dehydration device, the filtrate (liquid of described filtering means dehydration device connects a filtrate receiver, and described filtrate receiver utilizes pipeline to be connected to described slurry tank, and described pipeline is provided with the second circulating pump.
2. a kind of flue gas desulfur device as claimed in claim 1, is characterized in that: the upper portion side wall of described desulfurizing tower offers rinse water entrance, and described rinse water entrance is connected with water tank.
3. a kind of flue gas desulfur device as claimed in claim 1, is characterized in that: described spray coil is provided with three layers.
4. a kind of flue gas desulfur device as claimed in claim 2, is characterized in that: the below of described filtering means dehydration device is provided with to accept the conveyer belt of filtrate, and the below of described conveyer belt is provided with water collector, and described water collector is connected to described filtrate receiver.
5. a kind of flue gas desulfur device as claimed in claim 4, is characterized in that: the top of described conveyer belt is provided with rinse water shower nozzle, and described rinse water nozzle connecting is connected to described water tank.
6. a kind of flue gas desulfur device as claimed in claim 1, is characterized in that: the outlet conduit of described second circulating pump separates a manifold, and utilizes described manifold to connect a filter, and the filtrate (liquid of described filter is connected to described filtrate receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601875.7U CN204891594U (en) | 2015-08-11 | 2015-08-11 | Flue gas desulfurizing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601875.7U CN204891594U (en) | 2015-08-11 | 2015-08-11 | Flue gas desulfurizing apparatus |
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| Publication Number | Publication Date |
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| CN204891594U true CN204891594U (en) | 2015-12-23 |
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| CN201520601875.7U Active CN204891594U (en) | 2015-08-11 | 2015-08-11 | Flue gas desulfurizing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693638A (en) * | 2016-12-26 | 2017-05-24 | 合肥天翔环境工程有限公司 | Dust removal and desulfurization treatment system of industrial kiln |
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2015
- 2015-08-11 CN CN201520601875.7U patent/CN204891594U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693638A (en) * | 2016-12-26 | 2017-05-24 | 合肥天翔环境工程有限公司 | Dust removal and desulfurization treatment system of industrial kiln |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |